Texas Instruments SM320C6455-EP manual ACE5A ACE4A, ACE3A, ACE2A, ABE7 ABE6 ABE5 ABE4, DCE0

Models: SM320C6455-EP

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SM320C6455-EP

FIXED-POINT DIGITAL SIGNAL PROCESSOR

SPRS462B – SEPTEMBER 2007 – REVISED JANUARY 2008

 

 

64

 

AED[63:0]

Data

 

ACE5(A)

 

 

ACE4(A)

Memory Map

 

ACE3(A)

Space Select

 

ACE2(A)

 

External

 

 

 

20

Memory I/F

 

Control

AEA[19:0]

Address

 

ABE7

 

 

ABE6

 

 

ABE5

 

 

ABE4

Byte Enables

 

ABE3

 

 

 

ABE2

 

 

ABE1

 

 

ABE0

 

 

 

 

Bus

 

 

Arbitration

ABA[1:0]

Bank Address

 

 

 

EMIFA (64-bit Data Bus)

 

32

 

DED[31:0]

Data

 

 

 

 

 

 

Memory Map

 

 

DCE0

 

 

 

 

 

 

Space Select

External

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

Memory I/F

 

 

 

 

 

DEA[13:0]

 

Address

Control

 

 

 

 

 

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AECLKIN

AECLKOUT

ASWE/AAWE

AARDY

AR/W

AAOE/ASOE

ASADS/ASRE

AHOLD

AHOLDA

ABUSREQ

DDR2CLKOUT

DDR2CLKOUT

DSDCKE

DSDCAS

DSDRAS

DSDWE

DSDDQS[3:0]

DSDDQS[3:0]

DSDDQGATE[0]

DSDDQGATE[1]

DSDDQM3

DSDDQM2

DSDDQM1

DSDDQM0

Byte Enables

Bank Address

DSDDQGATE[2]

DSDDQGATE[3]

DEODT[1:0]

DBA[2:0]

DDR2 Memoty Controller (32-bit Data Bus)

A.The EMIFA ACE0 and ACE1 are not functionally supported on the C6455 device.

Figure 2-8. EMIFA/DDR2 Memory Controller Peripheral Signals

26

Device Overview

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Texas Instruments SM320C6455-EP manual ACE5A ACE4A, ACE3A, ACE2A, ABE7 ABE6 ABE5 ABE4, ABE3 ABE2 ABE1 ABE0, DCE0